Стеб @whitequark попал в Fetured Ruby Weekly

Detecting Faces with Ruby: FFI in a Nutshell Ruby's FFI (foreign function interface) library makes it possible to interact with external libraries from Ruby often without having to write any C code of your own. This post looks at the basics of using FFI before moving on to a more complex example of using the OpenCV library from C to detect faces and then hooking into that.